Stockholders' Equity - Additional Information (Details) - USD ($)	3 Months Ended			6 Months Ended
	Jun. 30, 2018	Mar. 31, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017	Mar. 24, 2018
Equity [Abstract]
Cash dividends declared per share	$ 0.10	$ 0.10	$ 0.06	$ 0.20	$ 0.12
Stock Repurchase Program, Authorized Amount						$ 200,000,000
Cash spent under share repurchase program	$ 25,000,000			$ 25,000,000
Shares repurchased during period	1,055,000
Stock Repurchase Program, Remaining Authorized Repurchase Amount	$ 175,000,000			$ 175,000,000